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NAV lighting system for RC airplanes | 555 timer IC

Today we are going to create a strobe light for the tips of the wings of an rc airplane using a 555 timer (NE 555 or lm 555 ...
New Atlas

$99,000 smart observatory captures the cosmos with Canon optics

One would think that a US$99,000 telescope requires specialist training and a thick instruction manual. But the new Hyperia ...